The correct option is A (a)→(iv),(b)→(iii),(c)→(i),(d)→(ii)
Applying triangle law of vectors to the diagrams, given in list-II,
(i) →B=→A+→C
∴→B−→A−→C=0
This matches with (c)
(ii) →C=→A+→B
This matches with (d)
(iii) →C+→B=→A
∴→A−→C=→B
This matches with (b)
(iv) →A+→B=→C
∴→C−→A−→B=0
This matches with (a)
Hence, (B) is the correct answer.